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» Process algebra for performance evaluation
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TDM
2004
203views Database» more  TDM 2004»
15 years 1 months ago
Relational Algebra: Mother Tongue - XQuery: Fluent
This work may be seen as a further proof of the versatility of the relational database model. Here, we add XQuery to the catalog of languages which RDBMSs are able to "speak&...
Torsten Grust, Jens Teubner
VLDB
2005
ACM
85views Database» more  VLDB 2005»
15 years 5 months ago
Pattern Tree Algebras: Sets or Sequences?
XML and XQuery semantics are very sensitive to the order of the produced output. Although pattern-tree based algebraic approaches are becoming more and more popular for evaluating...
Stelios Paparizos, H. V. Jagadish
97
Voted
PODS
2010
ACM
187views Database» more  PODS 2010»
15 years 5 months ago
Incremental query evaluation in a ring of databases
This paper approaches the incremental view maintenance problem from an algebraic perspective. We construct a ring of databases and use it as the foundation of the design of a quer...
Christoph Koch
ITS
2004
Springer
104views Multimedia» more  ITS 2004»
15 years 5 months ago
Student Question-Asking Patterns in an Intelligent Algebra Tutor
Cognitive Tutors are proven effective learning environments, but are still not as effective as one-on-one human tutoring. We describe an environment (ALPS) designed to engage stude...
Lisa Anthony, Albert T. Corbett, Angela Z. Wagner,...
PE
2000
Springer
95views Optimization» more  PE 2000»
14 years 11 months ago
Compositional performance modelling with the TIPPtool
Stochastic process algebras have been proposed as compositional specification formalisms for performance models. In this paper, we describe a tool which aims at realising all bene...
Holger Hermanns, Ulrich Herzog, Ulrich Klehmet, Va...